From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A1552C433DF for ; Mon, 1 Jun 2020 12:05:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7DD6D20772 for ; Mon, 1 Jun 2020 12:05:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="F7FOnzmG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727056AbgFAMF2 (ORCPT ); Mon, 1 Jun 2020 08:05:28 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:48618 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725935AbgFAMF1 (ORCPT ); Mon, 1 Jun 2020 08:05:27 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1591013127; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=nwkOICvOQaXOWcko8kpLlTGev7mN/mGmU8J6lWaTsxY=; b=F7FOnzmGJ+taeMT4UU/mtOw0OgQBfFX92qyaKzLxY0GYcBKIapQsP/ENeJCGRFjzp8J0FZ Uv5ZNCZyRYLt5f5T+Rdud7Kyj1qM+vq37lBm8PRj4e5EspUzJwlE79X/qn3QCu0qGyUMNx b9JGzs2nWE2IikLYtWO1afuKp3mkI2k= Received: from mail-qv1-f71.google.com (mail-qv1-f71.google.com [209.85.219.71]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-297-kQ3CAcX_OYqHq9p6a6DvTg-1; Mon, 01 Jun 2020 08:05:25 -0400 X-MC-Unique: kQ3CAcX_OYqHq9p6a6DvTg-1 Received: by mail-qv1-f71.google.com with SMTP id t11so8343600qvv.11 for ; Mon, 01 Jun 2020 05:05:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=nwkOICvOQaXOWcko8kpLlTGev7mN/mGmU8J6lWaTsxY=; b=HmGjLYoS0Z0fyZ9PQSlf0IO2Uap4PnNRbHSN0SWc+q9+6pz5Rlt2Q/xFv54R3R2tZ8 AVgNHpUkHekL8KdNVlE2y5KXcD+ZFf+9Zlbiw4dd9o5G+qxde3Aoh1u5DxqBNBp/iQUc VmU3SQHkt6dvIWCdxG+A4YHH2RFjpPTnFm9mQVGazoV1gpfhXqGWhrbf5ki5aOcKLrDO 6ImsWmK3HTjWmKZcfXU7EjD8kRqwFVs9GRqtM/T2MMsvQlcp4BcZtHGf0XlhcPfvvNv8 farwY177I3USY6iGKa6+FW28i4jaSKsinfui4O90031sX9YoCF2NXioK+iB6FnC2xEow NxRg== X-Gm-Message-State: AOAM5327afKA5SirtzC+SnIebrTV8Ns6yzP08duax+OQ99BwVVGcHnbs poqak0is48EVJWnrTE14p7xtLt/uw1ig33Cub5Ia2J80z4+RHQ8FuwXtuSsMSkmSL5GiiBL8URk q6Ziw7vyEob7wzxRYTazjAGGX X-Received: by 2002:a0c:9c43:: with SMTP id w3mr19790542qve.38.1591013124294; Mon, 01 Jun 2020 05:05:24 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyvY22DeT/UzGqiMnb/bCQX1PDyAgwc9UpvDgLpzeIsmvIbU0/QZmMV3JP6xj4py4MirvztkQ== X-Received: by 2002:a0c:9c43:: with SMTP id w3mr19790468qve.38.1591013123625; Mon, 01 Jun 2020 05:05:23 -0700 (PDT) Received: from xz-x1.redhat.com ([2607:9880:19c0:32::2]) by smtp.gmail.com with ESMTPSA id y66sm14906164qka.24.2020.06.01.05.05.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Jun 2020 05:05:22 -0700 (PDT) From: Peter Xu To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Peter Xu , "Dr . David Alan Gilbert" , Andrew Jones , Vitaly Kuznetsov , Paolo Bonzini , "Michael S . Tsirkin" , Jason Wang , Sean Christopherson , Kevin Tian Subject: [PATCH v10 14/14] KVM: selftests: Add "-c" parameter to dirty log test Date: Mon, 1 Jun 2020 08:05:21 -0400 Message-Id: <20200601120521.1581843-1-peterx@redhat.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200601115957.1581250-1-peterx@redhat.com> References: <20200601115957.1581250-1-peterx@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It's only used to override the existing dirty ring size/count. If with a bigger ring count, we test async of dirty ring. If with a smaller ring count, we test ring full code path. Async is default. It has no use for non-dirty-ring tests. Reviewed-by: Andrew Jones Signed-off-by: Peter Xu --- tools/testing/selftests/kvm/dirty_log_test.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/kvm/dirty_log_test.c b/tools/testing/selftests/kvm/dirty_log_test.c index 4b404dfdc2f9..80c42c87265e 100644 --- a/tools/testing/selftests/kvm/dirty_log_test.c +++ b/tools/testing/selftests/kvm/dirty_log_test.c @@ -168,6 +168,7 @@ static enum log_mode_t host_log_mode_option = LOG_MODE_ALL; /* Logging mode for current run */ static enum log_mode_t host_log_mode; static pthread_t vcpu_thread; +static uint32_t test_dirty_ring_count = TEST_DIRTY_RING_COUNT; /* Only way to pass this to the signal handler */ static struct kvm_vm *current_vm; @@ -250,7 +251,7 @@ static void dirty_ring_create_vm_done(struct kvm_vm *vm) * Switch to dirty ring mode after VM creation but before any * of the vcpu creation. */ - vm_enable_dirty_ring(vm, TEST_DIRTY_RING_COUNT * + vm_enable_dirty_ring(vm, test_dirty_ring_count * sizeof(struct kvm_dirty_gfn)); } @@ -272,7 +273,7 @@ static uint32_t dirty_ring_collect_one(struct kvm_dirty_gfn *dirty_gfns, uint32_t count = 0; while (true) { - cur = &dirty_gfns[*fetch_index % TEST_DIRTY_RING_COUNT]; + cur = &dirty_gfns[*fetch_index % test_dirty_ring_count]; if (!dirty_gfn_is_dirtied(cur)) break; TEST_ASSERT(cur->slot == slot, "Slot number didn't match: " @@ -778,6 +779,9 @@ static void help(char *name) printf("usage: %s [-h] [-i iterations] [-I interval] " "[-p offset] [-m mode]\n", name); puts(""); + printf(" -c: specify dirty ring size, in number of entries\n"); + printf(" (only useful for dirty-ring test; default: %"PRIu32")\n", + TEST_DIRTY_RING_COUNT); printf(" -i: specify iteration counts (default: %"PRIu64")\n", TEST_HOST_LOOP_N); printf(" -I: specify interval in ms (default: %"PRIu64" ms)\n", @@ -833,8 +837,11 @@ int main(int argc, char *argv[]) guest_mode_init(VM_MODE_P40V48_4K, true, true); #endif - while ((opt = getopt(argc, argv, "hi:I:p:m:M:")) != -1) { + while ((opt = getopt(argc, argv, "c:hi:I:p:m:M:")) != -1) { switch (opt) { + case 'c': + test_dirty_ring_count = strtol(optarg, NULL, 10); + break; case 'i': iterations = strtol(optarg, NULL, 10); break; -- 2.26.2